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What Works Clearinghouse Rating
Download full textWhat Works Clearinghouse, 2015
The What Works Clearinghouse (WWC) Standards Briefs explain the rules the WWC uses to evaluate the quality of studies for practitioners, researchers, and policymakers. This brief explains what baseline equivalence is and why it matters. As part of the WWC review process for certain types of studies, reviewers assess whether the intervention group…
Descriptors: Control Groups, Participant Characteristics, Matched Groups, Research Methodology
Peer reviewedMeichtry, Yvonne J. – Journal of Research in Science Teaching, 1992
More than 1,600 middle school students, including an experimental group exposed to the Biological Science Curriculum Study (BSCS), were administered the Modified Nature of Scientific Knowledge Scale. Results indicate that the students utilizing the traditional science curriculum possessed a significantly better understanding of the testable nature…
Descriptors: Cognitive Development, Cognitive Measurement, Comparative Analysis, Control Groups
